XML 64 R47.htm IDEA: XBRL DOCUMENT v3.22.0.1
Significant Accounting Policies (Narrative) (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
states
Dec. 31, 2020
USD ($)
Jan. 01, 2020
USD ($)
Dec. 31, 2019
USD ($)
Number of states in which entity is licensed to sell insurance products | states 50      
Mortgage loans on real estate, allowance for credit losses $ 24,024 $ 31,029   $ 17,779 [1]
Coinsurance deposits, allowance for credit losses 2,264 1,888    
Retained earnings $ 2,767,422 $ 2,368,555    
Minimum        
Number of days past due, non-accrual status 90 days      
Interest crediting rate, range for fixed index annuities and other deferred annuity products 1.45% 1.45%   1.45%
Minimum | Available For Sale Fixed Maturity Securities        
Investment maturity period 1 year      
Minimum | Other Investments, Short-Term Debt Securities        
Investment maturity period 3 months      
Maximum        
Interest crediting rate, range for fixed index annuities and other deferred annuity products 2.65% 2.65%   2.65%
Maximum | Other Investments, Short-Term Debt Securities        
Investment maturity period 12 months      
Maximum | Other Investments, Short-Term Loans        
Investment maturity period 1 year      
Maximum | Cash and Cash Equivalents        
Investment maturity period 3 months      
Accounting Standards Update 2016-13 | Cumulative Effect, Period of Adoption, Adjustment        
Mortgage loans on real estate, allowance for credit losses     $ 8,600  
Coinsurance deposits, allowance for credit losses     3,200  
Retained earnings     $ (9,300)  
[1] Upon adoption of authoritative guidance effective January 1, 2020, we updated our accounting policies and methodology for calculating the general loan loss allowance, resulting in an adjustment to our mortgage loan valuation allowance. See Note 1 - Significant Accounting Policies for further details.